[postgis-users] ST_distance in meters

[Mike Toews]

Oscar Zamudio wrote:
> I couldn't find 900913 in the Spatial Reference List. Does anybody 
> know which one of the following projections uses Google Maps?

900913 isn't any "official" spatial reference number, in fact it is 
leetspeek for "Google" (where 9=g, etc.)

A good reference I found is here:
http://trac.openlayers.org/wiki/SphericalMercator

-Mike